Finding the Fourth Proportional to 387,744.37, 581,616.69 and 121,525.54
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Solution
The fourth proportional to 387,744.37, 581,616.69 and 121,525.54 is: 182,288.35
Step by Step Solution
- Step 1: Write the proportion equation
387,744.37 : 581,616.69 = 121,525.54 : x - Step 2: Convert to fraction form
387,744.37/581,616.69 = 121,525.54/x - Step 3: Cross multiply
387,744.37x = 581,616.69 × 121,525.54 - Step 4: Simplify right side
387,744.37x = 70,681,282,325.26 - Step 5: Solve for x
x = 70,681,282,325.26/387,744.37 - Step 6: Final answer
x = 182,288.35
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.